package io;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyDemo2_2 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("image.jpg");
        FileOutputStream fos = new FileOutputStream("image_cp.jpg");

        long start = System.currentTimeMillis();
        byte[] data = new byte[1024 * 10];
        int len;
        while ((len = fis.read(data)) != -1) {
            fos.write(data, 0, len);
        }

        long end = System.currentTimeMillis();
        System.out.println("耗时为：" + (end - start) + "ms");
        fis.close();
        fos.close();
    }
}
